There are
2,515 mi
from Walnut Creek, CA to Conneaut, OH
That's the driving distance. It would take 1 day 19 hours to go from Walnut Creek, California to Conneaut, Ohio.
The flight distance (direct flight from Walnut Creek, CA to Conneaut, OH) is 2,195.47 mi.
2,515 mi = 4,047.94 kms